Toggle navigation
Places
CAQI (Europe)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
English
Français
Deutsch
日本語
한국어
简体中文
繁體中文
Europe
Germany
North Rhine-Westphalia
Düsseldorf
Viersen
Dülken
CAQI (Europe)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Dülken
Viersen, Viersen
2026-07-23 15:00
CAQI (Europe)
Very Low
Pollutants
|
Pollens
PM10
μg/m³
13
PM2.5
μg/m³
6
Grasses
6.0
Mugwort
3.0
Alder
0
Ragweed
0
Birch
0
Olive Tree
0
Weather
℃
℃
℉
23℃
51%
20 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
CAQI (Europe)
CAQI (Europe)
Allergy Risk
PM10
PM2.5
Grasses
Mugwort
Alder
Ragweed
Birch
Olive Tree
Places included
Site 80776
AQI 7
Data Sources
https://www.eea.europa.eu
http://www.polleninfo.org
Get the App
Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.
iPhone, iPad
Android
Scan QR Code to Download App
iOS
Google Play
Download APK
Cities Nearby
Viersen
AQI 14
Schwalmtal
AQI 13
Nettetal
AQI 39
Grefrath
AQI 15
Niederkrüchten
AQI 15
Mönchengladbach
AQI 41
Tönisvorst
AQI 14
Brüggen
AQI 15
Wegberg
AQI 13
Kempen
AQI 14
Korschenbroich
AQI 13
Air Matters © 2026